Long-term Breeding Success of the Cattle Egret in Texas

Telfair, Ray C.; Bister, Timothy J.

doi:10.1675/1524-4695(2004)027[0069:lbsotc]2.0.co;2

Cited by 17 publications

(12 citation statements)

References 2 publications

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“…increase of the populations, the initial driving factors remain poorly known (Telfair and Bister, 2004). In Algeria recently established colonies were both within and outside urban areas and generally terrestrial.…”

Section: Discussionmentioning

confidence: 99%

The recent expansion of an avian invasive species (the Cattle Egret Ardea ibis) in Algeria

Bachir

Ferrah

Barbraud

et al. 2011

Journal of Arid Environments

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a b s t r a c tThis study identifies new information on the recent distribution of an invasive bird species, the Cattle Egret Ardea ibis, in Algeria. Breeding and wintering distributions as well as breeding numbers were obtained from large-scale surveys in 1999 and 2007, and from historical data. Between 1999 and 2007, the total number of colonies found increased from 51 to 87, and most were located in the northern part of the country. The breeding distribution area, confined to the coastal areas in the 1970s, has shifted further south, and reached the northern part of the Sahara since the 2000s. Most colonies were established during the period 1980e1995. The oldest colonies were generally larger than the recent ones. The number of colonies increased by 83% between 1999 and 2007 in the 12 administrative units (wilayas) surveyed. The number of breeding pairs increased from 7765 in 1999 to 28544 in 2007, corresponding to an annual population growth rate of 17.7%. The changes in distribution and population dynamics since the 1970s and the potential factors affecting these changes are discussed.

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Section: Discussionmentioning

confidence: 99%

The recent expansion of an avian invasive species (the Cattle Egret Ardea ibis) in Algeria

Bachir

Ferrah

Barbraud

et al. 2011

Journal of Arid Environments

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“…Colonial waterbirds can have profound effects on the vegetation where their colonies are situated (Telfair & Bister, 2004;Kolb, Jerling & Hambäck, 2010), and in dense woodland or reedbeds they open up spaces that increase spatial diversity and provide microhabitats suitable for other species. In many cases, openings in reedbeds are vital for aquatic invertebrates, other aquatic plants, fish and other waterbirds (Murkin, Kaminski & Titman, 1982;Wagner & Hansson, 1988;Murkin, Murkin & Ball, 1997).…”

Section: (7) Ecosystem Engineeringmentioning

confidence: 99%

Ecosystem services provided by waterbirds

2013

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Ecosystem services are ecosystem processes that directly or indirectly benefit human well-being. There has been much recent literature identifying different services and the communities and species that provide them. This is a vital first step towards management and maintenance of these services. In this review, we specifically address the waterbirds, which play key functional roles in many aquatic ecosystems, including as predators, herbivores and vectors of seeds, invertebrates and nutrients, although these roles have often been overlooked. Waterbirds can maintain the diversity of other organisms, control pests, be effective bioindicators of ecological conditions, and act as sentinels of potential disease outbreaks. They also provide important provisioning (meat, feathers, eggs, etc.) and cultural services to both indigenous and westernized societies. We identify key gaps in the understanding of ecosystem services provided by waterbirds and areas for future research required to clarify their functional role in ecosystems and the services they provide. We consider how the economic value of these services could be calculated, giving some examples. Such valuation will provide powerful arguments for waterbird conservation.

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“…Elsewhere, previous studies have shown considerable variation in hatching rates, ranging from 14.3% (Dusi and Dusi 1970) to 97.0% (Burger, 1978, Telfair andBister 2004). The present study shows a hatching success smaller than that of Darmallah (1990) but similar to that found in Moroccan colonies (Franchimont 1985).…”

Section: Discussionmentioning

confidence: 95%